hello/hello.c

   1 /* hello.c - test module for dynamic loading */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2003,2007  Free Software Foundation, Inc.
   5  *  Copyright (C) 2003  NIIBE Yutaka <gniibe@m17n.org>
   6  *
   7  *  GRUB is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  GRUB is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <grub/types.h>
  22 #include <grub/misc.h>
  23 #include <grub/mm.h>
  24 #include <grub/err.h>
  25 #include <grub/dl.h>
  26 #include <grub/extcmd.h>
  27
  28 static grub_err_t
  29 grub_cmd_hello (struct grub_extcmd *cmd __attribute__ ((unused)),
  30                 int argc __attribute__ ((unused)),
  31                 char **args __attribute__ ((unused)))
  32 {
  33   grub_printf ("Hello World\n");
  34   return 0;
  35 }
  36
  37 static grub_extcmd_t cmd;
  38
  39 GRUB_MOD_INIT(hello)
  40 {
  41   cmd = grub_register_extcmd ("hello", grub_cmd_hello, GRUB_COMMAND_FLAG_BOTH,
  42                               "hello", "Say hello", 0);
  43 }
  44
  45 GRUB_MOD_FINI(hello)
  46 {
  47   grub_unregister_extcmd (cmd);
  48 }